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Air Conditioning Control System (Touch Screen Controller)
Connection to External Devices
Example of connection to external equipment which is connected to digital input/output terminal.
I/O
Name
Item
I/O conditions
State
Contact permissible
DO1
output
voltage/current
Output
24 V DC/35 mA
common
DO2
Output
common
DO3
Output
common
DO4
Output
common
Control
No-voltage contact A
DI1
input
Pulse or static
Input
common
* No-voltage contacts
compatible with very
DI2
small current should
Input
be selected
common
5 V DC/3 mA
DI3
Input
common
DI4
Input
common
DI5
Input
common
DI6
Input
common
DI7
Input
common
DI8
Input
common
* Wire the cables so that the user does not touch the power supply directly.
* On the external device side, use a basically insulated power circuit and place it in a location where the user cannot touch it.
Air conditioning control system side
Terminal name
Circuit example
DO1
Output common
DO2
Output common
DO3
Output common
DO4
Output common
DI1
Input common
DI2
Input common
DI3
Input common
DI4
Input common
DI5
Input common
DI6
Input common
DI7
Input common
DI8
Input common
Installation Manual
External device side
I/O conditions
Wiring length:
Within 100 m
Pulse width:
50 msec or more
Wiring length:
Within 100 m
EN
13
-EN
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